diff --git a/Cargo.lock b/Cargo.lock
index 20a9c22..0663793 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -120,9 +120,9 @@ checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
 
 [[package]]
 name = "bindgen"
-version = "0.63.0"
+version = "0.64.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36d860121800b2a9a94f9b5604b332d5cffb234ce17609ea479d723dbc9d3885"
+checksum = "c4243e6031260db77ede97ad86c27e501d646a27ab57b59a574f725d98ab1fb4"
 dependencies = [
  "bitflags",
  "cexpr",
diff --git a/Cargo.toml b/Cargo.toml
index fac1086..fca7299 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,7 +46,7 @@ urlparse = "0.7"
 utf16string = { version= "0.2", optional = true }
 
 [build-dependencies]
-bindgen = { version = "0.63", optional = true }
+bindgen = { version = "0.64", optional = true }
 cmake = { version = "0.1", optional = true }
 
 [features]